20763710

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{283}}^1$

素因数の和:353

約数の個数: 64

約数和(自身を含む): 44167680

約数和(自身を除く): 23403970

約数列:

[1, 2, 5, 10, 11, 22, 23, 29, 46, 55, 58, 110, 115, 145, 230, 253, 283, 290, 319, 506, 566, 638, 667, 1265, 1334, 1415, 1595, 2530, 2830, 3113, 3190, 3335, 6226, 6509, 6670, 7337, 8207, 13018, 14674, 15565, 16414, 31130, 32545, 36685, 41035, 65090, 71599, 73370, 82070, 90277, 143198, 180554, 188761, 357995, 377522, 451385, 715990, 902770, 943805, 1887610, 2076371, 4152742, 10381855, 20763710]

約数ペア:

[(1, 20763710), (2, 10381855), (5, 4152742), (10, 2076371), (11, 1887610), (22, 943805), (23, 902770), (29, 715990), (46, 451385), (55, 377522), (58, 357995), (110, 188761), (115, 180554), (145, 143198), (230, 90277), (253, 82070), (283, 73370), (290, 71599), (319, 65090), (506, 41035), (566, 36685), (638, 32545), (667, 31130), (1265, 16414), (1334, 15565), (1415, 14674), (1595, 13018), (2530, 8207), (2830, 7337), (3113, 6670), (3190, 6509), (3335, 6226)]